Vytas

Hi Ian, It`s in the 5th picture from the bottom in my guide as well. Regards Vytas

So i have done the Heater core matrix change and it was not difficult without any mechanical knowledge, however would recommend to have someone to help you as at some stages it looks like you need another pair of hands just for holding a pipe in position or a torch. Started by removing the glove box and some covers on the passenger side: Then you will be able to see the heater core and pipes. After this, remove the media unit and disconnect all cables, all colour coded and different types of connectors, so it will be easy to connect back, but just in case, take a picture for reference. Remove the foam cover And remove the fan, few screws holding it. Remove the sensor in front of the heater matrix, which is blocking the bottom part of it. Place a tub under and start loosening the pipes. After that, push the pipe out of the way and slide the heater core out. Change the core and do everything back in reverse. I have bought new seals and clamps as well for the pipe, don`t need to, but it was just in case. Would at least recommend changing the seals. Was very difficult to alight the pipe and at the same time tighten the screws when putting back together as there was not a lot of room and make sure you put clamps facing the same way as they were due to not blocking the plastic going back in at the bottom of the heater core. Prior to the task, I completely flushed the coolant and changed the coolant tank, which I bought for 30£ as there was a lot of residue sitting at the bottom of it. Job done in April. Any questions I will try to answer when I can. Thanks and good luck,

Hi Ivan, In your case, i would remove the steering column cover and measure the temp at the bottom of the heater core, as rear vents get the air from the bottom of the heater, at least if it is hot, then you will know for sure it`s not your heater core/matrix. As well have a look in your coolant expansion tank for any silica at the bottom, as that's what starts blocking the heater when it bursts.

Hi, It`s behind the glove box towards the central console. If you remove the glove box you can see the pipes and the core, however, to remove it as someone said previously in this thread you will need to remove part of your heaterbox fan. Someone said it took around 2 hours to get it changed with lots of screws. I plan to change mine soon, maybe in a couple of weeks and I plan to take a few pictures of the steps and post them here.

Yes, the pipes are also hot on mine, but the bottom part of the core was cold to touch, as all the sediments apparently collect there. So the flow is still there it just doesn't get to the bottom part of the radiator.

Hi Yes + VAT. The total was ~950 including the diagnostic 84£ charge.

Here`s what the garage quoted me with part numbers.

Thanks for that. Did the core come with new seals and fittings or have you reused the old ones? And was the foam already on the radiator or did you have to buy it yourself? If yes what foam did you buy? Another thing, i was recommended by someone from another Audi forum to flush the system 2-3 times so that the issue not to reappear and to use g12+ coolant instead of g13. See the messages from the person below: Him: If on diagnosis there are no problems with the servomotors and there is a temperature difference between the right side of the passenger and the left side of the driver and the car is not equipped with anlectric valve in the front right part under the windshield wipers, the radiator is clogged. General cleaning of the engine cooling system will have to be done several times, it is complicated and expensive otherwise the new radiator will clog in a maximum of 2 months during this period it depends a lot on how badly the cooling system is affected. Me: What does it get clogged with? Him: Wash the system several times with a special solution to remove deposits from the cooling system and water, drive the car 50 60 km with the solution, then drive outside and put clean water in, drive with it 10 20 km, then repeat the procedure without leaving the car overnight only with water in the engine in order not to create problems after this operation, do not put antifreeze G13 is a garbage because of it, deposits appear and the liquid is colorless. Introduce Antifreeze G12+ into the system Him: because of the bad g13 antifreeze, a reaction is created and this degrades, creating films of dirt on the entire interior surface like a bank, this dries up, breaks and leaves through the system, the camdura radiator, having the smallest holes in it, destroys them all. END

Hi Josh, Thanks for the update. Did you buy OEM radiator and where did you buy it from, I can`t find anywhere. I managed to get the Audi OEM repair manual and was going to use it. It did say I needed to take both side panels from the driver and passenger. Did you need to do that, or have you done all the work from the passenger side? I waiting now on my garage to get back as I think they will cover the costs to repair it, fingers crossed, as I bought the car only on 28 OCT and this issue was there when it was sold to me. Their aftersales did divert me to their service department to arrange the repair and I am waiting for call back. By the way the warranty they sold me with it, did not cover "blockages" so that was out the door. Thanks again for the update! The garage I got quote form was charging me 5 hours of labor time and around 400£ for parts (950 with VAT). I can give you a link to the OEM manuals if anyone wants. They were uploaded by someone else, so I have no idea how long they will be there. Hopefully, this is allowed if not please delete. https://drive.google.com/drive/folders/1Jx_L5y73mTxSQHxpXti7xw6fRNJQRe0A?fbclid=IwY2xjawHDp75leHRuA2FlbQIxMAABHX84hi5ZdWAoI2W_TreVS_8Wp8c3pEdD3Pc6545RTHA06G9Y03hEPqLmcw_aem_UuUtITdLl9fEKFXDKLA-RQ

Thanks

Hi, Thanks for the answer. Can I ask you what was your initial problem that pointed you to replacing the heat core matrix? My car has low heat coming from the front vent and windshield vent, and no heat at all to the footwell area and back passenger seat vent. Thanks!

Thanks will do, for some reason i can only PM 1 message a day:/

Hello everyone, Looking for help if someone had an issue like this: I only get cold air to the rear passenger vents and footwell on my 3-way climate control. I get warm air to the front vents and windshield at ~22 Celsius when it is set to high. However when I only set the blower to blow to the footwell area then I don't get warm air ~19 Celsius no warm air to the back at all. Has anyone had a similar problem and got it fixed? Garge checked the flaps were opening correctly and said they would need to look at the heater box as the problem seemed to be there, but it's a huge job with around 24 hours of labor and they couldn`t guarantee it would be fixed. I am thinking of trying to change the heater core matrix and flushing coolant. Thank you and appreciate your help!

The garage said the same for me. It's a huge job, and they don't guarantee it will be fixed. I read on some other forums that replacing the Heater core matrix and flushing the coolant fixes the issue, so I am going to do it myself, as changing the heater core seems not too big of a job in the next 2-4 weeks.

Hey how did you get on with this? You managed to get it out? I have a problem on my car were there is not much heat coming from front vents and only cold air from footwell and rear vents. I think its the heater core matrix.